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,,,,,,,,,,                                          ,,,,,,,,,,
,,,,,,,,,,                                          ,,,,,,,,,,
~,,,,,,,,,                                          ,,,,,,,,,~
=~,,,,,,,,                   rails                  ,,,,,,,,~=
*=~,,,,,,,                                          ,,,,,,,~=*
£*=~,,,,,,                                          ,,,,,,~=*£
@£*=~,,,,, @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ,,,,,~=*£@
#@£*=~,,,,                                          ,,,,~=*£@#
##@£*=~,,, @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@ ,,,~=*£@##
###@£*=~,,                                          ,,~=*£@###
##@£*=~,,,                                          ,,,~=*£@##
#@£*=~,,,, trains  are  so  constructed  that  they ,,,,~=*£@#
@£*=~,,,,, have to  follow a set path. this path is ,,,,,~=*£@
£*=~,,,,,, called  a "railway", which is  comprised ,,,,,,~=*£
*=~,,,,,,, of two  metal rails, hence its nickname. ,,,,,,,~=*
=~,,,,,,,,                                          ,,,,,,,,~=
~,,,,,,,,, because  the low  friction  between  the ,,,,,,,,,~
,,,,,,,,,, wheels  of the train and the rail metal, ,,,,,,,,,,
,,,,,,,,,, there  are limits for how acute a  curve ,,,,,,,,,,
,,,,,,,,,, can be, and  even more  so for how  much ,,,,,,,,,,
,,,,,,,,,, the  ground  under  the  rails  can   be ,,,,,,,,,,
,,,,,,,,,, sloped. thus a  railway is often not led ,,,,,,,,,,
,,,,,,,,,, on top of hills, rather  through them in ,,,,,,,,,,
,,,,,,,,,, tunnels   (if   they   are  large),   or ,,,,,,,,,,
,,,,,,,,,,            artificial chasms.            ,,,,,,,,,,
,,,,,,,,,,                                          ,,,,,,,,,,
~,,,,,,,,, there will  be trees on the  side of the ,,,,,,,,,~
=~,,,,,,,, rails, but not too close,  or  they will ,,,,,,,,~=
*=~,,,,,,, be  cut down  by  the  railway janitors. ,,,,,,,~=*
£*=~,,,,,, there  will  be  plains,  and  bodies of ,,,,,,~=*£
@£*=~,,,,,                  water.                  ,,,,,~=*£@
#@£*=~,,,,                                          ,,,,~=*£@#
##@£*=~,,, trains  go  by day and  by  night. along ,,,~=*£@##
###@£*=~,,       the way, there is information      ,,~=*£@###
##@£*=~,,, scattered, often  put on top  of  poles, ,,,~=*£@##
#@£*=~,,,, to be interpreted by the  train drivers. ,,,,~=*£@#
@£*=~,,,,, different  parts  of  the  railway  have ,,,,,~=*£@
£*=~,,,,,,         different speed limits.          ,,,,,,~=*£
*=~,,,,,,,                                          ,,,,,,,~=*
=~,,,,,,,, sometimes, trains have to stop and  wait ,,,,,,,,~=
~,,,,,,,,, for  something to happen, far away. this ,,,,,,,,,~
,,,,,,,,,, is  signaled  by red  or  green  lights. ,,,,,,,,,,
,,,,,,,,,,                                          ,,,,,,,,,,
,,,,,,,,,,                 @@@@@@@@                 ,,,,,,,,,,
,,,,,,,,,,                                          ,,,,,,,,,,
,,,,,,,,,, many people  follow the  rails by  foot. ,,,,,,,,,,
,,,,,,,,,, often  this  proves  to be  the  shorter ,,,,,,,,,,
,,,,,,,,,, path  between  two points. however  this ,,,,,,,,,,
,,,,,,,,,, is  frowned  upon,  and   very  impolite ,,,,,,,,,,
,,,,,,,,,,        toward the train drivers!         ,,,,,,,,,,
~,,,,,,,,,                                          ,,,,,,,,,~
=~,,,,,,,,                                          ,,,,,,,,~=
*=~,,,,,,,                                          ,,,,,,,~=*
£*=~,,,,,,                                          ,,,,,,~=*£
@£*=~,,,,,                                          ,,,,,~=*£@
#@£*=~,,,,                                          ,,,,~=*£@#